/usr/share/plplot_octave/plot3.m is in octave-plplot 5.9.9-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | ## Copyright (C) 1998-2003 Joao Cardoso.
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by the
## Free Software Foundation; either version 2 of the License, or (at your
## option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## This file is part of plplot_octave.
## plot3 (x, y, z [, fmt])
##
## PLOT3() is a three-dimensional analogue of PLOT().
##
## PLOT3(x,y,z), where x, y and z are three vectors of the same length,
## plots a line in 3-space through the points whose coordinates are the
## elements of x, y and z.
##
## PLOT3(X,Y,Z), where X, Y and Z are three matrices of the same size,
## plots several lines obtained from the columns of X, Y and Z.
##
## Various plot type, symbols and colors may be obtained with
## PLOT3(X,Y,Z,s) where s is a 1, 2 or 3 character string made from
## the characters listed under the PLOT command. See __pl_opt() and plot().
function plot3 (x, y, z, fmt)
global __pl
strm = __pl_init;
if (nargin != 4 & nargin != 3)
error("plot3: not yet.\n");
endif
if (isvector(x) & isvector(y) & isvector(y))
if (nargin == 3)
fmt = "-r";
endif
__pl_plot3(x, y, z, fmt);
elseif (ismatrix(x) & ismatrix(y) & ismatrix(z))
if (!common_size(x,y,z))
if (rows(x) < columns(x))
x = x'; y = y'; z = z';
endif
if (nargin == 3)
fmt = "-r";
for i=2:columns(x)
fmt = [fmt; sprintf("%d%d", i, i)];
endfor
elseif (rows(fmt) == 1)
for i=2:columns(x)
fmt = [fmt; fmt];
endfor
elseif (rows(fmt) != columns(x))
error("plot3: `fmt' must have same length as `x'.\n");
endif
xm = min(min(x)); xM = max(max(x));
ym = min(min(y)); yM = max(max(y));
zm = min(min(z)); zM = max(max(z));
if (__pl.axis_st(strm))
xm = __pl.axis(strm,1); xM = __pl.axis(strm,2); # at least x always exist
if (length(__pl.axis) >= 4)
ym = __pl.axis(strm,3); yM = __pl.axis(strm,4);
else
__pl.axis(strm,3) = ym; __pl.axis(strm,4) = yM;
endif
if (length(__pl.axis) == 6)
zm = __pl.axis(strm,5); zM = __pl.axis(strm,6);
else
__pl.axis(strm,5) = zm; __pl.axis(strm,6) = zM;
endif
else # make axis() return current axis
__pl.axis(strm,1) = xm; __pl.axis(strm,2) = xM;
__pl.axis(strm,3) = ym; __pl.axis(strm,4) = yM;
__pl.axis(strm,5) = zm; __pl.axis(strm,6) = zM;
endif
h_st = ishold;
if (!ishold)
plcol0(15);
__pl_plenv(-1.6, 1.6, -1.6, 2.6, 0, -2);
pllab("", "", tdeblank(__pl.tlabel(strm,:)));
plw3d(2, 2, 2, xm, xM, ym, yM, zm, zM,...
__pl.alt(strm), __pl.az(strm))
plbox3("bnstu", tdeblank(__pl.xlabel(strm,:)), 0.0, 0,...
"bnstu",tdeblank(__pl.ylabel(strm,:)), 0.0, 0,...
"bcdmnstuv", tdeblank(__pl.zlabel(strm,:)), 0.0, 0)
hold on
endif
for i=1:columns(x)
__pl_plot3(x(:,i), y(:,i), z(:,i), fmt(i,:));
endfor
if (h_st == 0)
hold off
endif
else
error("plot3: x and y and z must have same dimension\n");
endif
endif
endfunction
|